Sheldon and Leonard in “The Barbarian Sublimation”

Leonard, you have to do something about Penny. She's interfering with my sleep, she's interfering with my work...and if I had another significant aspect of my life, I'm sure she'd be interfering with that, too.

Why should I do something? You're the one who introduced her to online gaming.

Yes, but you're the one who said hello to her when she moved in. If you'd simply restrained yourself, none of this would be happening.

Why don't you just tell her to leave you alone?

I did! I told her, I texted her, I sent out a very emphatic Twitter, I even changed my Facebook status to "Sheldon Cooper wishes Penny would leave him alone"! I don't know what else to do!

Well, what am I supposed to to?

I don't know, but if you don't figure something out, I warn you, I shall become very difficult to live with!

You mean up until now we've been experiencing the happy, fun-time Sheldon?

Yes.

I'll go talk to her!